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有的时候我们需要实现属于自己的弹框和弹出框的遮罩层效果,下面我给大家讲一下有javascript实现最简单的属于自己的弹框和弹框遮罩层效果,首先编写遮罩层的javascript,代码如下:
1、遮罩层js:
//获得坐标
function getPosition() {
var top = document.documentElement.scrollTop;
var left = document.documentElement.scrollLeft;
var height = document.documentElement.clientHeight;
var width = document.documentElement.clientWidth;
//top=500;
left = 500;
//height=0;
width = 500;
height = 300;
top = 300;
return { top: top, left: left, height: height, width: width };
}
//屏蔽输入,显示蒙板
function showMask(id) {
var obj = document.getElementById(id);
obj.style.width = document.body.clientWidth;
obj.style.height = document.body.clientHeight;
// obj.style.height = window.screen.availHeight
obj.style.display = "block";
}
//隐藏蒙板
function hideMask(id) {
document.getElementById(id).style.display = "none";
}
//显示弹框
function showPop(id) {
showMask(‘mask‘);
var width = 300; //弹出框的宽度
var height = 250; //弹出框的高度
var obj = document.getElementById(id);
obj.style.display = "block";
obj.style.position = "absolute";
obj.style.zindex = "10";
obj.style.overflow = "hidden";
obj.style.width = width + "px";
obj.style.height = height + "px";
var Position = getPosition();
leftadd = (Position.width - width) / 2;
topadd = (Position.height - height) / 2;
obj.style.top = (Position.top + topadd) + "px";
obj.style.left = (Position.left + leftadd) + "px";
window.onscroll = function () {
var Position = getPosition();
obj.style.top = (Position.top + topadd) + "px";
obj.style.left = (Position.left + leftadd) + "px";
};
}
//隐含
function hidePop(id) {
hideMask(‘mask‘);
document.getElementById(id).style.display = "none";
}
遮罩层和弹框的html如下:
<input type="button" value="弹出弹框" onclick="showPop(‘tcc‘)"/>
<!--蒙板-->
<div id="mask" style="filter: Alpha(opacity=30); -moz-opacity: 0.3; -khtml-opacity: 0.3;
opacity: 0.3; background-color: #000; width: 100%; height: 100%; z-index: 200;
position: absolute; left: 0; top: 0; display: none; overflow: hidden;">
</div>
<!--蒙板结束-->
<!--弹出层---->
<div id="tcc" style="display:none;background-color:#00ffff;z-index: 201;">
<input type="button" value="隐藏弹出层" onclick="hidePop(‘tcc‘)"/>
</div>
利用以上的效果我们可以制作自定义的弹框了,弹框的内容也可以自定义了。
版权声明:本文为博主原创文章,未经博主允许不得转载。
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原文地址:http://blog.csdn.net/yu13767514297/article/details/47151223